Kestrel, Ive got one of those little pistols and have had it for many+ years...So long ago, I vaguely remember it may have been imported by Navy Arms at one time....I checked Navy's web and no longer see it listed....At that time, long, long ago..
, I believe it was made Pedersoli...I no longer see it on their web..
You may want to check here... http://vtigunparts.com/
They handle parts for most all of the imported firearms... If anyone can tell you a source of information concerning this little gun, they may...